O3 Analyzer
Technical principle
UV adsorption Ozone analyzer is developed based on Beer-Lambert technology. It is applied to monitor low concentration O3 in ambient air. I = Io e-αLc 254nm UV light passes through sample gas cell and is absorbed by ozone inside it. Adsorption value has a certain ration with O3 concentration. By cyclically alternating of magnetic valve and measuring sample gas and the sample without O3, the true and reliable measured concentration of ozone is obtained at last.
|
Measurement range |
0~500ppb, 0~10ppm(optional) |
|
Unit |
nmol/mol (ppb), μmol/mol (ppm), μg/m3, mg/m3(optional) |
|
Zero noise |
<0.5 ppb(RMS) |
|
Detection lower limit |
1 ppb |
|
Zero drift |
≤1 ppb / 24 hours |
|
Span drift |
<5 ppb / 24 hours |
|
Response time |
<60s |
|
Linearity |
<1%FS |
|
Repeatability |
<1% |
|
Sampling flow range |
900cm3/min±10% |
|
Ambient temperature |
5 ℃ ~ 40 ℃ |
|
Dimension |
178 mm×430 mm×635 mm |
|
Weight |
<10kg |
|
Power supply |
200V~240V, 50/60Hz, 400W |
|
Analog output |
10V, 5V, 1V, 0.1V (optional) |
|
Communication specification |
RS232/RS485 |
Feature
1. Measurement range 0 ~ 500ppb to 0 ~ 10ppm; User selectable
2. Dark current compensation at fixed time, high stability
3. Multi-functional operation by microprocessor
4. Adaptive signal filtering technology to optimize the response time
5. High sensitivity, high repeatability, simple operation
6. Instrument parameters can be automatically monitored
7. Large capacity memory; automatic storage of historical data
8. Modular design, easy to replace and maintain
